APATITE TRIPLE DATING IN ANTARCTICA
[1] Apatite triple dating (fission track, U-Pb and U-Th/He techniques) has been applied to detrital grains from the sedimentary core drilled during the ANDRILL 2A project, which documents the Miocene history of the Victoria Land Basin (western Ross Sea). High-temperature cooling ages show two main c...
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Online Access: | https://www.openaccessrepository.it/record/91913 https://doi.org/10.1029/2012gc004357 |
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ftopenaccessrep:oai:zenodo.org:91913 2023-10-25T01:30:25+02:00 APATITE TRIPLE DATING IN ANTARCTICA Franco M Talarico Peter W. Reiners Stuart N. Thomson Benedetta Andreucci Massimiliano Zattin 2012-10-01 https://www.openaccessrepository.it/record/91913 https://doi.org/10.1029/2012gc004357 eng eng url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/91913 doi:10.1029/2012gc004357 info:eu-repo/semantics/openAccess NEANIAS Atmospheric Research Community Geochemistry and Petrology Geophysics info:eu-repo/semantics/article publication-article 2012 ftopenaccessrep https://doi.org/10.1029/2012gc004357 2023-09-26T22:18:17Z [1] Apatite triple dating (fission track, U-Pb and U-Th/He techniques) has been applied to detrital grains from the sedimentary core drilled during the ANDRILL 2A project, which documents the Miocene history of the Victoria Land Basin (western Ross Sea). High-temperature cooling ages show two main clusters (about 30 and 500 Ma) whereas most of low-temperature data are late Oligocene-Early Miocene in age. These latter data are related to the exhumation of the Transantarctic Mountains south of the Discovery Accommodation Zone. Comparison between low-temperature ages suggests that the Transantarctic Mountains have been in a phase of post-orogenic decay since at least 30 Ma. The Oligocene U-Pb data demonstrate the presence of a volcanic event well before the McMurdo volcanic group, whose onset is commonly places at 19 Ma. The location of the volcanic centers is unknown, but they could be below the Ross Ice Shelf south of drilling site. As a whole, these data indicate a major flow of sediments from south to north with only minor contributions from nearby outlet glaciers of the East Antarctic Ice Sheet. Article in Journal/Newspaper Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Ross Ice Shelf Ross Sea Victoria Land Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository Antarctic East Antarctic Ice Sheet Ross Ice Shelf Ross Sea Transantarctic Mountains Victoria Land Geochemistry, Geophysics, Geosystems 13 10 n/a n/a |
institution |
Open Polar |
collection |
Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository |
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ftopenaccessrep |
language |
English |
topic |
NEANIAS Atmospheric Research Community Geochemistry and Petrology Geophysics |
spellingShingle |
NEANIAS Atmospheric Research Community Geochemistry and Petrology Geophysics Franco M Talarico Peter W. Reiners Stuart N. Thomson Benedetta Andreucci Massimiliano Zattin APATITE TRIPLE DATING IN ANTARCTICA |
topic_facet |
NEANIAS Atmospheric Research Community Geochemistry and Petrology Geophysics |
description |
[1] Apatite triple dating (fission track, U-Pb and U-Th/He techniques) has been applied to detrital grains from the sedimentary core drilled during the ANDRILL 2A project, which documents the Miocene history of the Victoria Land Basin (western Ross Sea). High-temperature cooling ages show two main clusters (about 30 and 500 Ma) whereas most of low-temperature data are late Oligocene-Early Miocene in age. These latter data are related to the exhumation of the Transantarctic Mountains south of the Discovery Accommodation Zone. Comparison between low-temperature ages suggests that the Transantarctic Mountains have been in a phase of post-orogenic decay since at least 30 Ma. The Oligocene U-Pb data demonstrate the presence of a volcanic event well before the McMurdo volcanic group, whose onset is commonly places at 19 Ma. The location of the volcanic centers is unknown, but they could be below the Ross Ice Shelf south of drilling site. As a whole, these data indicate a major flow of sediments from south to north with only minor contributions from nearby outlet glaciers of the East Antarctic Ice Sheet. |
format |
Article in Journal/Newspaper |
author |
Franco M Talarico Peter W. Reiners Stuart N. Thomson Benedetta Andreucci Massimiliano Zattin |
author_facet |
Franco M Talarico Peter W. Reiners Stuart N. Thomson Benedetta Andreucci Massimiliano Zattin |
author_sort |
Franco M Talarico |
title |
APATITE TRIPLE DATING IN ANTARCTICA |
title_short |
APATITE TRIPLE DATING IN ANTARCTICA |
title_full |
APATITE TRIPLE DATING IN ANTARCTICA |
title_fullStr |
APATITE TRIPLE DATING IN ANTARCTICA |
title_full_unstemmed |
APATITE TRIPLE DATING IN ANTARCTICA |
title_sort |
apatite triple dating in antarctica |
publishDate |
2012 |
url |
https://www.openaccessrepository.it/record/91913 https://doi.org/10.1029/2012gc004357 |
geographic |
Antarctic East Antarctic Ice Sheet Ross Ice Shelf Ross Sea Transantarctic Mountains Victoria Land |
geographic_facet |
Antarctic East Antarctic Ice Sheet Ross Ice Shelf Ross Sea Transantarctic Mountains Victoria Land |
genre |
Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Ross Ice Shelf Ross Sea Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Ross Ice Shelf Ross Sea Victoria Land |
op_relation |
url:https://www.openaccessrepository.it/communities/itmirror https://www.openaccessrepository.it/record/91913 doi:10.1029/2012gc004357 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2012gc004357 |
container_title |
Geochemistry, Geophysics, Geosystems |
container_volume |
13 |
container_issue |
10 |
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n/a |
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n/a |
_version_ |
1780739276783222784 |